The continuous growth of the world population is causing an increase in the demands for food and energy of the population. Given these circumstances and the negative consequences derived from climate change, it is necessary to evolve towards a more efficient and sustainable agricultural system. In this sense, the agrivoltaic proposes to combine agricultural production and photovoltaic energy production in the same piece of land. Several studies have analysed the behaviour of the agrivoltaic facilities from a theoretical point of view. However, it is necessary to test the viability of this new system in experimental plants. In this work an experimental agrivoltaic plant developed in Córdoba (Spain) is described. The preliminary results of this study show that agrivoltaics can and should play a fundamental role in the energy model of the countries since it promotes the development of renewable energies while improving the economic performance of agricultural land.
The fight against climate change makes it necessary, among other measures, to improve the energy efficiency of buildings. One way of doing this is to improve the levels of natural lighting inside buildings. In this sense, this paper analyses the possible use of heliostats as natural illuminators in an educational space. For this purpose, a classroom in the Leonardo da Vinci building of the Rabanales Campus of the University of Cordoba (Spain) and an illuminator system based on a single-axis polar heliostat have been reproduced at a scale of 1:15. These devices have been exposed to the same solar irradiance conditions and the illuminance levels registered inside both devices have been compared. It was found that there is an increase in daylighting levels in the recreated classroom ranging from 70.40% to 242.58% compared to the situation without heliostat illuminators. Therefore, it can be concluded that heliostats can play a fundamental role to improve the efficiency of buildings and, therefore, in the fight against climate change.
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